8000 feat(bigquery): add helper classes for cloud-client testing (1/3) (#1… · amirx-cloud/java-docs-samples@1975c4c · GitHub
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feat(bigquery): add helper classes for cloud-client testing (1/3) (GoogleCloudPlatform#10034)
* feat(bigquery): add helper classes for cloud-client testing * use consistent names and fields * add Util class for testing helpers
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‎bigquery/cloud-client/snippets/pom.xml

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<?xml version='1.0' encoding='UTF-8'?>
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<!--
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Copyright 2025 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.example.bigquery</groupId>
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<artifactId>cloud-client-snippets</artifactId>
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<packaging>jar</packaging>
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<name>Google Cloud BigQuery Cloud Client Snippets</name>
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<!--
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The parent pom defines common style checks and testing strategies for our samples.
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Removing or replacing it should not affect the execution of the samples in anyway.
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-->
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<parent>
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<groupId>com.google.cloud.samples</groupId>
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<artifactId>shared-configuration</artifactId>
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<version>1.2.0</version>
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</parent>
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<properties>
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<maven.compiler.target>21</maven.compiler.target>
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<maven.compiler.source>21</maven.compiler.source>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>com.google.cloud</groupId>
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<artifactId>libraries-bom</artifactId>
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<version>26.32.0</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>com.google.cloud</groupId>
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<artifactId>google-cloud-bigquery</artifactId>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.13.2</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>com.google.truth</groupId>
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<artifactId>truth</artifactId>
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<version>1.4.4</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎bigquery/cloud-client/snippets/src/main/java/com/example/bigquery/CreateDataset.java

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.bigquery;
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import com.google.cloud.bigquery.BigQuery;
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import com.google.cloud.bigquery.BigQueryException;
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import com.google.cloud.bigquery.BigQueryOptions;
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import com.google.cloud.bigquery.Dataset;
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import com.google.cloud.bigquery.DatasetId;
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import com.google.cloud.bigquery.DatasetInfo;
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public class CreateDataset {
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public static void main(String[] args) {
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// TODO(developer): Replace these variables before running the sample.
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// Project where to create the dataset.
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String projectId = "MY_PROJECT_ID";
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String datasetName = "MY_DATASET_NAME";
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createDataset(projectId, datasetName);
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}
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public static void createDataset(String projectId, String datasetName) {
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try {
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// Initialize client that will be used to send requests. This client only needs
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// to be created once, and can be reused for multiple requests.
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BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();
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String location = "US";
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// Create datasetId with the projectId and the datasetName, and set it into the datasetInfo.
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DatasetId datasetId = DatasetId.of(projectId, datasetName);
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DatasetInfo datasetInfo = DatasetInfo.newBuilder(datasetId).setLocation(location).build();
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// Create Dataset.
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Dataset dataset = bigquery.create(datasetInfo);
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System.out.println(
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"Dataset \"" + dataset.getDatasetId().getDataset() + "\" created successfully");
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} catch (BigQueryException e) {
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System.out.println("Dataset was not created. \n" + e.toString());
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}
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}
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}

‎bigquery/cloud-client/snippets/src/main/java/com/example/bigquery/CreateTable.java

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.bigquery;
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import com.google.cloud.bigquery.BigQuery;
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import com.google.cloud.bigquery.BigQueryException;
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import com.google.cloud.bigquery.BigQueryOptions;
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import com.google.cloud.bigquery.Field;
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import com.google.cloud.bigquery.Schema;
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import com.google.cloud.bigquery.StandardSQLTypeName;
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import com.google.cloud.bigquery.StandardTableDefinition;
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import com.google.cloud.bigquery.Table;
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import com.google.cloud.bigquery.TableDefinition;
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import com.google.cloud.bigquery.TableId;
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import com.google.cloud.bigquery.TableInfo;
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public class CreateTable {
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public static void main(String[] args) {
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// TODO(developer): Replace these variables before running the sample.
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// Project and dataset name to create a new table
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String projectId = "MY_PROJECT_ID";
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String datasetName = "MY_DATASET_NAME";
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String tableName = "MY_TABLE_NAME";
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// Schema for a Google BigQuery Table.
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Schema schema =
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Schema.of(
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Field.of("stringField", StandardSQLTypeName.STRING),
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Field.of("isBooleanField", StandardSQLTypeName.BOOL));
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createTable(projectId, datasetName, tableName, schema);
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}
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public static void createTable(
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String projectId, String datasetName, String tableName, Schema schema) {
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try {
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// Initialize client that will be used to send requests. This client only needs
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// to be created once, and can be reused for multiple requests.
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BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();
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// Create table identity given the projectId, the datasetName and the tableName.
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TableId tableId = TableId.of(projectId, datasetName, tableName);
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// Create table definition to build the table information
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TableDefinition tableDefinition = StandardTableDefinition.of(schema);
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TableInfo tableInfo = TableInfo.newBuilder(tableId, tableDefinition).build();
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// Create table
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Table table = bigquery.create(tableInfo);
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System.out.println("Table \"" + table.getTableId().getTable() + "\" created successfully");
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} catch (BigQueryException e) {
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System.out.println("Table was not created. \n" + e.toString());
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}
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}
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}

‎bigquery/cloud-client/snippets/src/main/java/com/example/bigquery/CreateView.java

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.bigquery;
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import com.google.cloud.bigquery.BigQuery;
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import com.google.cloud.bigquery.BigQueryException;
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import com.google.cloud.bigquery.BigQueryOptions;
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import com.google.cloud.bigquery.Table;
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import com.google.cloud.bigquery.TableId;
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import com.google.cloud.bigquery.TableInfo;
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import com.google.cloud.bigquery.ViewDefinition;
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// Sample to create a view
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public class CreateView {
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public static void main(String[] args) {
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// TODO(developer): Replace these variables before running the sample.
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// Project, dataset and table name to create a new view
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String projectId = "MY_PROJECT_ID";
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String datasetName = "MY_DATASET_NAME";
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String tableName = "MY_TABLE_NAME";
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String viewName = "MY_VIEW_NAME";
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String query =
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String.format("SELECT stringField, isBooleanField FROM %s.%s", datasetName, tableName);
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createView(projectId, datasetName, viewName, query);
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}
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public static void createView(
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String projectId, String datasetName, String viewName, String query) {
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try {
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// Initialize client that will be used to send requests. This client only needs
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// to be created once, and can be reused for multiple requests.
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BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();
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// Create table identity given the projectId, the datasetName and the viewName.
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TableId tableId = TableId.of(projectId, datasetName, viewName);
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// Create view definition to generate the table information.
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ViewDefinition viewDefinition =
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ViewDefinition.newBuilder(query).setUseLegacySql(false).build();
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TableInfo tableInfo = TableInfo.of(tableId, viewDefinition);
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// Create view.
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Table view = bigquery.create(tableInfo);
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System.out.println("View \"" + view.getTableId().getTable() + "\" created successfully");
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} catch (BigQueryException e) {
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System.out.println("View was not created. \n" + e.toString());
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}
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}
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}

‎bigquery/cloud-client/snippets/src/main/java/com/example/bigquery/DeleteDataset.java

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.bigquery;
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import com.google.cloud.bigquery.BigQuery;
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import com.google.cloud.bigquery.BigQuery.DatasetDeleteOption;
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import com.google.cloud.bigquery.BigQueryException;
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import com.google.cloud.bigquery.BigQueryOptions;
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import com.google.cloud.bigquery.DatasetId;
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public class DeleteDataset {
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public static void main(String[] args) {
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// TODO(developer): Replace these variables before running the sample.
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// Project from which to delete the dataset
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String projectId = "MY_PROJECT_ID";
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String datasetName = "MY_DATASET_NAME";
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deleteDataset(projectId, datasetName);
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}
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public static void deleteDataset(String projectId, String datasetName) {
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try {
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// Initialize client that will be used to send requests. This client only needs
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// to be created once, and can be reused for multiple requests.
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BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();
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// Create datasetId with the projectId and the datasetName.
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DatasetId datasetId = DatasetId.of(projectId, datasetName);
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// Delete dataset.
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boolean success = bigquery.delete(datasetId, DatasetDeleteOption.deleteContents());
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if (success) {
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System.out.println("Dataset \"" + datasetName + "\" deleted successfully");
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} else {
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System.out.println("Dataset was not found");
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}
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} catch (BigQueryException e) {
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System.out.println("Dataset was not deleted. \n" + e.toString());
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}
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}
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}

‎bigquery/cloud-client/snippets/src/main/java/com/example/bigquery/DeleteTable.java

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.bigquery;
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import com.google.cloud.bigquery.BigQuery;
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import com.google.cloud.bigquery.BigQueryException;
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import com.google.cloud.bigquery.BigQueryOptions;
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import com.google.cloud.bigquery.TableId;
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public class DeleteTable {
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public static void main(String[] args) {
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// TODO(developer): Replace these variables before running the sample.
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// Project, dataset and table name to create a new table
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String projectId = "MY_PROJECT_ID";
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String datasetName = "MY_DATASET_NAME";
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String tableName = "MY_TABLE_NAME";
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deleteTable(projectId, datasetName, tableName);
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}
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public static void deleteTable(String projectId, String datasetName, String tableName) {
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try {
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// Initialize client that will be used to send requests. This client only needs
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// to be created once, and can be reused for multiple requests.
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BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();
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// Create table identity given the projectId, the datasetName and the tableName.
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TableId tableId = TableId.of(projectId, datasetName, tableName);
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// Delete the table.
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boolean success = bigquery.delete(tableId);
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if (success) {
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System.out.println("Table \"" + tableName + "\" deleted successfully");
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} else {
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System.out.println("Table was not found");
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}
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} catch (BigQueryException e) {
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System.out.println("Table was not deleted. \n" + e.toString());
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}
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}
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}

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